package com.sky.mapper;

import com.sky.entity.ShoppingCart;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;
import org.apache.ibatis.annotations.Update;

import java.util.List;

@Mapper
public interface ShoppingCartMapper {
    /**
     * 动态条件查询
     */
    List<ShoppingCart> selectByDishIdOrSetmealId(ShoppingCart shoppingCart);

    /**
     * 更新购物车,将物品数量加一
     */
    @Update("update shopping_cart set number = #{number} where id = #{id}")
    void updateNumberById(ShoppingCart shoppingCart);

    /**
     * 插入购物车数据
     */
    void insert(ShoppingCart sct);

    /**
     * 查询当前用户shopping_cart表中的所有数据（根据userid查)
     */
    @Select("select * from shopping_cart where user_id = #{userId}")
    List<ShoppingCart> selectAll(Long userId);

    /**
     * 清空当前用户购物车
     */
    @Delete("delete from shopping_cart where user_id = #{userId}")
    void deleteAll(Long userId);

    /**
     * 根据id删除购物车数据
     */
    @Delete("delete from shopping_cart where id = #{id}")
    void deleteById(Long id);

    /**
     * 批量插入购物车数据
     */
    void insertBatch(List<ShoppingCart> shoppingCartList);
}
